TDA7498L datasheet(10/27 Pages) STMICROELECTRONICS

部件名	TDA7498L

功能描述	80 watt 80 watt dual BTL class-D audio amplifier

PDF	27 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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10 / 27 page

Electrical specifications

TDA7498L

10/27

Doc ID 16504 Rev 3

fSW

Switching frequency

Internal oscillator

290

310

330

kHz

fSWR

Output switching frequency

Range

With internal oscillator (1)

250

400

kHz

With external oscillator (2) 250

400

VinH

Digital input high (H)

2.3

VinL

Digital input low (L)

0.8

VSTBY

Pin STBY voltage high (H)

2.7

Pin STBY voltage low (L)

0.5

VMUTE

Pin MUTE voltage high (H)

2.5

Pin MUTE voltage low (L)

0.8

AMUTE

Mute attenuation

VMUTE < 0.8 V

fSW = 10

6 / ((16 * R

OSC + 182) * 4) kHz, fSYNCLK = 2 * fSW with R3 = 39 kΩ (see Figure 20.).

fSW = fSYNCLK / 2 with the external oscillator.

Table 6.

Electrical specifications (continued)

Symbol

Parameter

Condition

Min

Typ

Max

Unit

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